xref: /illumos-gate/usr/src/lib/libc/i386/gen/ladd.S (revision 5d9d9091f564c198a760790b0bfa72c44e17912b)
1*5d9d9091SRichard Lowe/*
2*5d9d9091SRichard Lowe * CDDL HEADER START
3*5d9d9091SRichard Lowe *
4*5d9d9091SRichard Lowe * The contents of this file are subject to the terms of the
5*5d9d9091SRichard Lowe * Common Development and Distribution License (the "License").
6*5d9d9091SRichard Lowe * You may not use this file except in compliance with the License.
7*5d9d9091SRichard Lowe *
8*5d9d9091SRichard Lowe * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9*5d9d9091SRichard Lowe * or http://www.opensolaris.org/os/licensing.
10*5d9d9091SRichard Lowe * See the License for the specific language governing permissions
11*5d9d9091SRichard Lowe * and limitations under the License.
12*5d9d9091SRichard Lowe *
13*5d9d9091SRichard Lowe * When distributing Covered Code, include this CDDL HEADER in each
14*5d9d9091SRichard Lowe * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15*5d9d9091SRichard Lowe * If applicable, add the following below this CDDL HEADER, with the
16*5d9d9091SRichard Lowe * fields enclosed by brackets "[]" replaced with your own identifying
17*5d9d9091SRichard Lowe * information: Portions Copyright [yyyy] [name of copyright owner]
18*5d9d9091SRichard Lowe *
19*5d9d9091SRichard Lowe * CDDL HEADER END
20*5d9d9091SRichard Lowe */
21*5d9d9091SRichard Lowe
22*5d9d9091SRichard Lowe/*
23*5d9d9091SRichard Lowe * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24*5d9d9091SRichard Lowe * Use is subject to license terms.
25*5d9d9091SRichard Lowe */
26*5d9d9091SRichard Lowe
27*5d9d9091SRichard Lowe	.file	"ladd.s"
28*5d9d9091SRichard Lowe
29*5d9d9091SRichard Lowe/ Double long add routine.
30*5d9d9091SRichard Lowe
31*5d9d9091SRichard Lowe#include "SYS.h"
32*5d9d9091SRichard Lowe
33*5d9d9091SRichard Lowe	.set	lop,4
34*5d9d9091SRichard Lowe	.set	rop,12
35*5d9d9091SRichard Lowe	.set	ans,0
36*5d9d9091SRichard Lowe
37*5d9d9091SRichard Lowe	ENTRY(ladd)
38*5d9d9091SRichard Lowe	popl	%eax
39*5d9d9091SRichard Lowe	xchgl	%eax,0(%esp)
40*5d9d9091SRichard Lowe
41*5d9d9091SRichard Lowe	movl	lop(%esp),%ecx
42*5d9d9091SRichard Lowe	addl	rop(%esp),%ecx
43*5d9d9091SRichard Lowe	movl	lop+4(%esp),%edx
44*5d9d9091SRichard Lowe	adcl	rop+4(%esp),%edx
45*5d9d9091SRichard Lowe	movl	%ecx,ans(%eax)
46*5d9d9091SRichard Lowe	movl	%edx,ans+4(%eax)
47*5d9d9091SRichard Lowe
48*5d9d9091SRichard Lowe	ret
49*5d9d9091SRichard Lowe	SET_SIZE(ladd)
50